Why does the doppler effect occur only if the sound-emitting object is moving relative to the listener?
2007-12-02 05:27:58 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
You've got it backwards. It is observed that the frequency emitted by an object moving relative to the observer is different from the frequency emitted when the object is at rest. The Doppler Effect is the name given to the mathematical description of that observation.
2007-12-02 05:40:56 · answer #1 · answered by jgoulden 7 · 0⤊ 0⤋
Doppler Effect Is Actually a Great Principle..it simply does'nt lays stress on sound..actually..doppler effect is related to the frequency and not the sound..You may take a look at this..the site has illustrated the effect with proper illustrations..the one you talk about ''sound''
is just an illustration..The Frequency Can be of sound or a light...it is vastly used in calculating the "Age Of a Star" or "Age Of A Galaxy"
http://www.answers.com/topic/doppler-effect?cat=health
2007-12-02 13:52:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋